|Astro 10P Fall 2006 UC Berkeley (Astro 10P Introduction to General Astronomy) - Joshua Bloom|
Lectures from the course Astro 10P Introduction to General Astronomy by Joshua Bloom. Copied to archive.org on closure of the UCB podcast site in order to preserve access. Note: some lectures may appear to be missing (gap in numbering). This usually means that there was a holiday or no lecture on the day the recording was due, although sometimes it does mean that the audio is not available.
|The properties of the 2175AA extinction feature discovered in GRB afterglows - Tayyaba Zafar|
The unequivocal, spectroscopic detection of the 2175 bump in extinction curves outside the Local Group is rare. To date, the properties of the bump have been examined in only two GRB afterglows (GRB 070802 and GRB 080607). In this work we analyse in detail the detections of the 2175 extinction bump in the optical spectra of the two further GRB afterglows: GRB 080605 and 080805. We gather all available optical/NIR photometric, spectroscopic and X-ray data to construct multi-epoch SEDs for both GR...
|The Factory and The Beehive I. Rotation Periods For Low-Mass Stars in Praesepe - Marcel Agüeros|
Stellar rotation periods measured from single-age populations are critical for investigating how stellar angular momentum content evolves over time, how that evolution depends on mass, and how rotation influences the stellar dynamo and the magnetically heated chromosphere and corona. We report rotation periods for 40 late-K to mid-M stars members of the nearby, rich, intermediate-age (~600 Myr) open cluster Praesepe...